Biologo ambientale in una tuta protettiva sulla riva di un serbatoio conduce una prova espressa di acqua di fiume per inquinamento - Foto e immagini stock

A man in special protective clothing analyzes the water from the river using special reagents and test tubes on the street

Scientist's hand, in a protective suit and gloves, collects liquid into flasks and test tubes, for testing, against the background of the river

A man in a protective suit and respirator analyzes the water from the river in a portable laboratory using special reagents

Specialist conducts soil and air research with the help of a mobile laboratory

Scientist's hand, in a protective suit and gloves, pours liquid from a flask into a pond

Hand in protective clothing and a rubber glove draws water into a flask from a river for chemical analysis

Close - up of a Petri dish, with grown plants, in the laboratory, the hands of a scientist planted in the environment

Scientist, in a protective suit and mask, pours liquid from a test tube into a flask, for testing water, against the background of pipes

Close-up of a Petri dish with a sample of plants from a pond for research in the hands of a laboratory worker, top view, on a background of water

A scientist in a protective suit and mask, collects a sample of water in test tubes, against the background of drain pipes, there is a place for the inscription

A scientist, wearing protective gloves and a uniform, conducts research with plants, pouring reagent from a test tube into a Petri dish, close-up

Scientist, in a protective suit and mask, pours liquid from a test tube into a flask, for testing water

Scientist in a protective suit and gloves, pour blue liquid from a test tube into a flask, against the background of the river

A man in special protective clothing holds a set of test tubes in front of him and does a water analysis